F05D 2220/762
Of the direct current type
Official title: of the direct current (D.C.) type
F05D2220/762 (Of the direct current type) appears on 29 US grants and 34 published applications in this corpus.
Search patents in F05D- Granted patents
- 29
- Published applications
- 34
- Assignees
- 18
- Inventors
- 64
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2010 | 0 | 2 |
| 2011 | 0 | 1 |
| 2012 | 1 | 0 |
| 2013 | 0 | 1 |
| 2014 | 1 | 0 |
| 2015 | 0 | 0 |
| 2016 | 1 | 0 |
| 2017 | 1 | 2 |
| 2018 | 0 | 0 |
| 2019 | 4 | 5 |
| 2020 | 4 | 7 |
| 2021 | 0 | 2 |
| 2022 | 5 | 4 |
| 2023 | 3 | 5 |
| 2024 | 5 | 3 |
| 2025 | 2 | 1 |
| 2026 | 2 | 1 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- System and methods for stabilization of DC bus voltage in a hybrid-electric aircraft18 Aug 2026US 12,710,009 B2VerdeGo Aero, Inc.
- Systems and methods for controlling an electrical distribution system for a hybrid-electric aircraft propulsion system24 Feb 2026US 12,559,245 B2Pratt & Whitney Canada Corp.
- Hybrid propulsion systems2 Sep 2025US 12,404,031 B2Rolls-Royce North American Technologies Inc.
- Distributed electrical generators for turbofan engines22 Jul 2025US 12,368,346 B1Hamilton Sundstrand Corporation
- Systems and methods for propulsion26 Nov 2024US 12,152,534 B2Clear Ascent Corp.
- Method and system for starting an aeronautical turbine engine having a free turbine and a single-spool gas generator7 May 2026US 2026/0126014 A1Safran Helicopter Engines
- System and methods for stabilization of dc bus voltage in a hybrid-electric aircraft20 Mar 2025US 2025/0091723 A1VerdeGo Aero, Inc.
- Systems and methods for controlling an electrical distribution system for a hybrid-electric aircraft propulsion system28 Nov 2024US 2024/0391598 A1Pratt & Whitney Canada Corp.
- Hybrid propulsion systems10 Oct 2024US 2024/0336364 A1Rolls-Royce North American Technologies Inc.
- Split turbocharger having independent electric turbine and electric compressor components10 Oct 2024US 2024/0337213 A1VerdeGo Aero, Inc.
Most cited
By later US patents
- Electric power generating turbine engine fuel supply system10US 8,286,432 B2Honeywell International Inc. · 2012
- Hybrid propulsion systems9US 10,759,540 B2Rolls-Royce North American Technologies Inc. · 2020
- Hybrid propulsion systems5US 11,225,881 B2Rolls-Royce North American Technologies Inc. · 2022
- Process improvement through the addition of power recovery turbine equipment in existing processes4US 10,508,568 B2Uop LLC · 2019
- Systems and methods for adjusting operations of a gas turbine following a transient event3US 10,205,414 B2General Electric Company · 2019